Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)
How well do you like your KX250F/K5 conversion
Motorrad:
The bolt you pictured is stainless.. Big NO NO in load bearing use
alward25:
--- Quote from: Motorrad on December 15, 2012, 08:44:23 AM ---The bolt you pictured is stainless.. Big NO NO in load bearing use
--- End quote ---
Funny you should mention that. Guess how many load bearing stainless bolts we use on the MH-60T Jayhawk? Almost all of them, or Titanium like the wrist pin I made was out of a Ti upper pitch control rod bolt for the main rotor head. The main rotor blades are also held on with 8 3/4" diameter stainless bolts. That is some decent load bearing. Four 280 lb rotor blades being swing at 260 rpm by almost 4000 hp. I have to take a cold shower just thinking about it. But, aircraft grade is different too :-D
I always enjoy our talks :lol:
Alex
Larry Wiechman:
A helicopter is several thousand parts flying in close formation for a short period of time. :evil:
Back to motor mounts. Socket head cap screws or hex bolts (grade 12.9) and thick, hardened washers will help spread the clamping force. Button head screws suck, no matter what material they're made of.
alward25:
They are a big ceiling fan, when the fan stops, the pilot really sweats :-D
I like a 12 pt flanged head myself.
--- Quote from: Larry Wiechman on December 15, 2012, 12:23:14 PM ---
A helicopter is several thousand parts flying in close formation for a short period of time. :evil:
Back to motor mounts. Socket head cap screws or hex bolts (grade 12.9) and thick, hardened washers will help spread the clamping force. Button head screws suck, no matter what material they're made of.
--- End quote ---
sandblaster:
Thanks for all the info guys.
Helicopters are really cool but I don't plan on that much air time :-D
I'm just trying to figure out a clean way to attach the motor mounts to the frame without welding.
And, I won't be using SS.
That was a quick and easy pic for representation that I borrowed from a Google search.
Any suggestions besides having a big bolt sticking out of my frame rails?
12 pt flanged head?
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